Home / 14,567.88-20,103.61-8,280.25

Finding the Fourth Proportional to 14,567.88, 20,103.61 and 8,280.25

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Solution

The fourth proportional to 14,567.88, 20,103.61 and 8,280.25 is: 11,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,567.88 : 20,103.61 = 8,280.25 : x
  2. Step 2: Convert to fraction form
    14,567.88/20,103.61 = 8,280.25/x
  3. Step 3: Cross multiply
    14,567.88x = 20,103.61 × 8,280.25
  4. Step 4: Simplify right side
    14,567.88x = 166,462,916.70
  5. Step 5: Solve for x
    x = 166,462,916.70/14,567.88
  6. Step 6: Final answer
    x = 11,426.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.